With this size of the spiral staircase, you would obviously have a reduced stair width, which you would need to check is suitable for your family and the way the staircase will be used. This is known as a space-saving staircase because it takes up very little square footage in a home, which can free up a large area of the room if you were to replace a standard staircase with this type. The smallest size of spiral staircase available from most manufacturers will have a diameter measurement of 3 feet and 6 inches. It is this design that means a spiral staircase is great for saving space because it will go directly up to the next floor, rather than diagonally across a room like most staircases.īecause the pole is in the center of the staircase, there is only a handrail on the outside of the staircase, so it might not be the best type of staircase to use for anyone who is a little unsteady on their feet.Īdded to this, spiral staircases tend to be steeper than regular staircases, which might be a safety concern for some people, such as those with children or elderly users. It is this central pole that provides the structural integrity of the stairs, and therefore no other reinforcements or supports are needed. Typically, spiral staircase sizes vary with the smallest standard spiral staircase having a diameter measurement of 3 feet 6 inches and a walking path width measurement of 17 inches to the largest standard spiral staircase with a diameter measurement of 6 feet and a walking path width measurement of 32 inches.Ĭheck out the drawing below with great details.Ī spiral staircase is based around a central pole, with a simple design that makes installation quicker and easier than a regular staircase. Spiral staircases are available in a variety of sizes to suit different needs, which we will address below. With this type of staircase, from the base to the top, the steps and the person on them turn 180°.Spiral staircases are commonly seen in industrial settings, but they can also be used in residential properties as a style element or in an effort to save space and increase usable square footage in a room. The half-turn staircase, or 2/4, is a variant of the quarter-turn staircase.For our classic series, we also offer many different code compliant tread styles for a similar effect. We offer riser bars and limiters for our econo and econo + models.Is there anything I can do to fill up some of the gap between treads?.For an additional fee, we can provide documentation in many different formats and requirements from shop drawings to engineering stamps and calculations.Do you provide any documentation for building code inspectors or architects?.We always recommend contacting a local building code inspector to make sure you know what code is enforced in your particular area. Our team of design consultants are well-versed in the most current code requirements and can answer any questions you have.How do I know if the stair I want meets code?.Most of our standard models’ rotation (travel direction) are reversible and can be determined on site, during installation.Is the travel direction reversible or does that have to be determined before I order?. Some models are offered with an adjustable treads where your final riser height can be determined on site, during installation.Floor to floor height is the measurement from the bottom floor’s finished surface to the finished surface of the upper floor.Any stairs ordered with horizontal line rail needs an opening that is 4” larger than the diameter of the stair. For any stair ordered with vertical balusters, you need an opening that is 2” larger than the diameter of the stair.While shipping charges can vary dramatically, we ship to all US States and Canada.
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